Garden Annexes & Modular Annex Buildings

Independent living. Close to home.

A garden annexe is a self-contained living space on your property — perfect for multi-generational living, guest accommodation, or flexible work/life balance. At DB Space Modular, we design modern, energy-efficient annexes that combine comfort, style, and privacy — all installed with the speed and precision of modular construction.

What Is an Annexe?

An annexe is a standalone, self-sufficient unit positioned either adjacent to or within the garden of your home, designed to function independently. It typically includes:

A living/lounge area
Kitchen or kitchenette
Bathroom facilities
One or more bedrooms or flexible sleeping areas

Unlike a simple garden room, an annexe is built for full-time habitation, which means it must meet the same technical, structural, and comfort requirements as any home extension.

Why Choose a DB-Space Modular Annexe?

Fully Habitable & Year-Round Use
Engineered to meet Building Regulations, our annexes perform as true living spaces, not just garden sheds.
Flexible & Multi-Functional
Use it for elderly relatives, young adults, guests, or even as combined home office and guest suite.
Speed & Efficiency
Modular build means shorter site time, less mess, and more predictable schedules.
Connection Without Compromise
You get privacy and independence for users, yet proximity for peace of mind and connection.
Premium Finishes, Thoughtful Design
From glazed walls to crisp cladding, your annexe integrates beautifully with your garden and home design.

Design & Layout Options

We offer various design approaches depending on your site, budget, and needs:

Compact single-bedroom annexes – economical, efficient, self-contained.
Larger or multi-room annexes – incorporating generous living, bedroom, or dual-purpose zones.
Dual office & living layouts – combining workspace and guest accommodation in one structure.
Glazing & Indoor-Outdoor Transitions – Sliding doors, canopy overhangs, pergolas, or partial glazing to balance light with privacy.
Custom finishes – timber, composite cladding, aluminium trims, and window systems for harmony with your property.

Planning, Building Regulations & Compliance

Do I Need Planning Permission?

Annexes are more likely than garden rooms to require planning permission, because they are classed as full living accommodation. The need depends on local authority rules, size, height, proximity to boundaries, and services. iHus positions itself as a “leading annexe provider” handling planning and permitting for many projects.

What About Building Regulations?

Yes – because an annexe is fully habitable, it must comply with UK Building Regulations (insulation, structure, ventilation, fire safety, etc.). We will manage the technical approvals, structural engineering, and inspection sign-off on your behalf.

Permitted Development & Certificate of Lawfulness

In some cases, small annexes or structures built under certain rules might bypass full planning. We’ll assess your site and determine the best route (planning, lawfulness certificate, or permitted development) during our survey phase.

Quick Facts: Annexes at a Glance

Fully habitable modular annexes, built for independent living
Turn-key installations in weeks (not months)
Designed for year-round comfort with premium insulation
Sizes and layouts tailored to your home and garden
Designed & delivered nationwide

Case Studies & Examples

Below are some examples of annexes we’ve completed (dual office & living, guest suites, etc.) — each built with the same precision and attention to detail as all DB Space Modular projects.

> View Gallery

How the Process Works

Initial Consultation & Survey
We assess your site, discuss your needs, and show you design options.
Design & Planning
We develop your layout, render visuals, and manage planning/approval processes.
Manufacture & Off-Site Build
Modules or components are produced in our controlled environment for quality and accuracy.
On-Site Installation
Foundations, utilities, installation, finishes, and commissioning.
Handover & Aftercare
Final inspections, client walkthrough, warranty, and ongoing support.

Request a Quote